William Payne
Mission Hills, CACareer Race Results
| Position | Race | Class | Date | Bike |
|---|---|---|---|---|
| 8 | Delta Motorsport Park | 500MX | August 11, 1974 | Maico |
| 12 | Hangtown Motocross Classic | 500MX | April 7, 1974 | Maico |
| 14 | Tahoe Recreation Park | 500MX | June 18, 1972 | Maico |
| 19 | Saddleback Park | 250MX | May 21, 1972 | Yamaha |
| 18 | Cal-Expo | 250MX | May 14, 1972 | Yamaha |